import java.util.*;
public class Example4_11 {
  public static void main (String args[]) {
    Scanner scanner = new Scanner(System.in);
    int [] a={12,34,9,23,45,6,45,90,123,19,34};
    Arrays.sort(a);
    System.out.println(Arrays.toString(a));
    System.out.println("输入整数，程序判断该整数属否在数组中：");
    int number = scanner.nextInt();
    int index = Arrays.binarySearch(a,number);
    if(index>=0)
    System.out.println(number+"和数组找中索引为"+index+"的元素相同");
    else
    System.out.println(number+"不与数组中任何元素相同");
  }
}
